Knee pad



FIG. 1 is a right side perspective view of a knee pad showing our new design, the left side being a mirror image;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a top perspective view thereof; and,

FIG. 5 is a bottom perspective view thereof. 

The ornamental design for a knee pad, as shown and described. 